NEOCENE STRATIGRAPHY. 317 



.Feet. 



50 Sandstone with fossils 40 



49 Many thin layers of conglomerate and shell fragments ... 20 



48 Sandy layers 125 



47 Conglomerate 2 



46 Sand 10 



45 Conglomerate with Scutella interlineata Stimp 5 



44 Yellow sandstone 30 



43 Yellow sandstone with many layers of fine conglomerate. . 20 



42 Yellow sandstone with Scutella interlineata Stimp 15 



41 Yellow sandstone 55 



40 Thin layers of shells 10 



39 Yellow sandstone 20 



38 Lignite, several thin layers 



37 Yellow sandstone 25 



36 Conglomerate with Scutella interlineata StimiD 20 



35 Sandstone, containing many layers a few inches thick 



almost made np of Scutella 55 



34 Bright yellow sandstone 20 



33 Same with hard sandstone layers or nodules a few inches 



thick 10 



32 Bright yellow sandstone with scattered shells and full of 



pot-like holes from a foot to several feet in diameter. . . . 145 



31 Layers of fine gravel and conglomerate 20 



30 Yellow sandstone with Lucina, etc 110 



29 Drab sandstone with thin layers of lignite 10 



28 Yellow sandstone 25 



27 Lignite. 



26 Buff sandstone, showing a few scattered fossils 530 



25 Same, showing laj^ers of fine and coarse conglomerate 



with Crypta, Olivella, Nassa, etc 55 



24 Drab clay with bright red jointing 6 



23 Buff sandstone 235 



22 Gravel and conglomerate with fossils, Crepidula grandis 



Con., Standella californica Con., Scutella, etc 10 



21 Buff sandstone 60 



20 Yellow sandstone with some layers of conglomerate 105 



19 Layer of lignite from one to eight inches thick 



18 Yellow sandstone 65 



17 Conglomerate, very hard, with Scutella 2 



16 Light drab sand with many hard projecting layers of con- 

 glomerate 150 



16 Same as above 195 



